RX610 Group
22. I
2
C Bus Interface (RIIC)
R01UH0032EJ0120 Rev.1.20
Page 715 of 1006
Feb 20, 2013
HOA Flag (Host Address Detection)
[Setting condition]
•
When the received slave address matches the host address (0001 000b) with the HOAE bit in ICSER set to 1 (host
address detection enabled)
This flag is set to 1 at the rising edge of the ninth SCL clock cycle in the frame.
[Clearing conditions]
•
When 0 is written to the HOA bit after reading HOA = 1
•
When a stop condition is detected
•
When 0 is written to the SMBS bit in ICMR3 or the HOAE bit in ICSER
•
When the received slave address does not match the host address (0001 000b) with the HOAE bit in ICSER set to 1
(host address detection enabled)
This flag is cleared to 0 at the rising edge of the ninth SCL clock cycle in the frame.
•
When 1 is written to the IICRST bit in ICCR1 to apply an RIIC reset or an internal reset